trenner



2 Sheets Sheet 1.

(No Model.)

A. B. TRENNER.

STIGKY FLY PAPER.

No. 431,537. Patented-July 1, 1890.

(No Mdel.) 2 Sheets-Sheet 2.

A. B. TRENNER. STIGKY FLY PAPER.

No. 431,537. Patented J-ulyl, 1890.

' UNITED STATES PATENT OEEICE.

ALFRED B. TRENNER, OF CINCINNATI, OHIO, ASSIGNOR TO THE NATIONAL FLY PAPER COMPANY, OF SAME PLACE.

STICKY FLY- PAPER.

SPECIFICATION forming part f Letters :Patent No. 431,537, dated July 1, 1890.

Application led March 8, 1890. Serial No. 343,153. (No specimens.)

To @ZZ whom it may concern.-

Be it known that I, ALFRED B. TEENNEE, a citizen of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Sticky Fly- Paper, of which the following is a specification.

My invention relates to that class of flypaper in which one face thereof is coated with I0 sticky fly-catching material and an uncoated margin or exposed portion left thereon, whereby the sheet may be handled or a number of them packed together in pairs or single sheets folded once with their sticky faces contiguous; and my invention consists in the provision of separable spacing elevations or strips of suitable thickness interposed in the margin between the two leaves of a oncefolded sheet of sticky y-paper, or each pair of sheets whose sticky-coated faces lie contiguous, all as hereinafter fully described, and particularly pointed out in the claims.

In the accompanying drawings, Figure l is a plan view of a single sheet of sticky iiy-paper, showing its coated surface witha surrounding raised edge or frame in the outer uncoated margin thereof; Fig. 2, a perspective view of a pair of sheets with their coated surfaces lying contiguous, the outer end of the upper sheet being turned upward to showv the manner in which my marginal Strip or raised edging for said said coated surfaces is placed on the lower sheet; Fig. 3, a cross-seotion on line so, Fig. l, showing a number of sheets piled horizontally one on top of the.

other, the respective pairs of sheets lying with their sticky-coated faces contiguous, a spacing and guard strip or elevation being interposed in the marginal edges between the sheets comprising each of said pairs; Fig. 4, a broken full-size cross-section of a pair of sheets with their sticky faces contiguous and showing the intermediate marginal guardstrips or elevations, the latter having their lower faces stuck to the lower sheet and their upper faces loose or free from the upper sheet, the heavy line in this view indicating the Ymaterial for sticking said lower faces of the strips or elevations to said lower sheet; Fig.

5, a view similar to Fig. 4, but showing both 5ofaces of the marginal guard-strips or elevations stuck to both the upper and lower sheets; Fig. 6, a cross-section showing a folio or single sheet folded over once with my internal marginal guard-strip or elevation applied thereto; Fig. 7, a plan view showing my marginal guard-strip or elevation applied within the edges of a sheet, said edges being folded over on said strips or elevations on the sticky face of said sheet; Fig. 8, a perspective view of a pan containing the stickingfluid in which one of the longitudinal edges of one of said guard-strips is being immersed prior to placing on the sheet; Fig. 9, a cross-section on line y y of the pan and strip shown in Fig. 8; Fig. lO, a broken perspective view of one corner of a sheet, showing the manner in which the marginal guard-strip, coated on its inner edge with adhesive material, as shown in Figs. 8 and 9, is stuck in place on the lower s heet ready for receiving the upper sheet; Fig. 11, a plan view showing the guardstrip or elevation in the form of sawdust or other granular substance; Fig. 12, a crosssection on line l l of Fig. 11; and Fig. 13, a 75 plan view of a modification, showing a double row of elevations around the sheet.

A represents a sheet of paper prepared and coated on one face, as usual, with sticky ilycatching material a, leaving a suitable uncoated or clear margin a around the entire sheet, all as clearly shown in Figs. 1, 2, 7, 10, and 11.

B represents a narrow strip or elevation of any suitable material-such as straw-board, 85 card-board, thick paper, fiber, saw-dust, sand, or the like-and of sufficient thickness to form a perceptibly-raised border around the edges of the sticky material in the said entire uncoated margin of the sheet. This strip or elevation forms both a spacing medium and guard in the uncoated margin when interposed between two sheets lying with their sticky faces contiguous, as clearly shown in Fig. 2. Both sheets of apair are thus spaced 95 so that a greater quantity of sticky material can be put on them, and when spread open for use they will of course be more servicehandling.

able, as the thicker the sheet is coated with sticky material the better its adaptation to quickly and positively entrap the prey. The strip or elevation in forming a guard or seal around the entire edge of said sticky material presents a closed border, which effectually prevents the escape of said sticky material from between the sheets or the admission of air to dry and harden it and thereby render it uniit for sale or use.

It is obvious that the marginal strip or elevation B may be secured or held in place between the sheets inany desirable manner and at a point directly adjacent the entire edge of said sticky material, or farther out (if desired) in the wide margin left uncoated for In the drawings I have shown a number of ways, all of which I have found in practice to be efficacious.

In Figs. 1, 2, and 3 I have shown the surrounding elevation or strip nearly laid in place on the lower sheet without anything to stick or hold it there other than the outer edges of the sticky material a, which, under ordinary circumstances, is sufficient.

In Fig. 4 I have shown the lower face only of the strip or elevation stuck in place on the lower sheet by means of a material equally adhesive as or more adhesive than the sticky fly-catching material. I prefer to use a material more adhesive than said fly-catching material, and of such a nature or composition that it will not melt or become thin at an equal or ordinarily greater degree of heat that it requires to melt or thin said fly-catchlng material, thereby preserving the closed border intact at everything but extreme degrees of heat. I prefer, also, that said material for sticking the surrounding strip or elevation in place shall be of such a nature that it will not be affected by ordinary degrees of coldsuoli as the temperature by which said sticky iiy-catching material is hardened-and there-k by easily cracked, thus preserving the said closed border intact against everything but extremes of cold.

In Fig. 5 I have shown both the upper and lower faces of the surrounding strip or elevation stuck to the upper and lower sheets, respectively, by means of a material similar to that mentioned in connection with Fig. 4, thus providing va perfectly sealed or closed border,which forms a barrier to the egress of the sticky iiycatching material and the ingress of any drying or hardening medium to said sticky material.

In Fig. 6 the folio or once-folded sheet has a strip or elevation around three of its edges or margins, the fold therein furnishing the other barrier for the sticky material.

InFig. 7 the folded edges have a guardstrip or elevation interposed 4between them and the face of the sheet. rlhis strip or elevation is preferably stuck to their under faces, as shown, and thereby performs the above functlons mentioned in connection with the pair of sheets shown in Fig. 5, where a perfectly-closed border is provided.

In manufacturing the paper I find that in order to produce the best results in the most convenient and economical manner one of the longitudinal edges of each section of the surrounding strip B, when made of straw or- The nest or package of sheets shown in Fig.

3 illustrates the manner in which the pairs of sheets are arranged, one pair on top of the other, with the spacing and guard-strips or elevations interposed between the respective sheets of each pair. The weight of the sticky material is thus borne by the said strips, and its egress is effectually obviated, thereby preventing any of the sheets smearing the others on their outer faces or otherwise rendering the goods unsalable or unfit for use. It will be seen that a wide uncoated margin is provided between the outer edges of the strip or elevation B and those of the sheets, thus furnishing a clean surface in the parting of a pair of sheets, whereby the user can readily handle them in pulling them apart and spreading them out for the purpose intended.

In opening or parting a pair of sheets having the straw-board marginal strips stuck to both of them by means of any suitable material it is obvious that the said straw-board will readily split at its center or at any point, in fact, in its thickness, therebyy'obviating any liability of injury to the paper sheet by tearing` or otherwise.

In Figs. 1l and l2 the elevation or strip B is composed of fine sawdust or other similar granular material, which is suitably-stuck in place by means of a sticky substance like unto that hereinbefore described in connection with Figs. 4 and 5. It is obvious that more than a single raised edge or elevation B can be used in the uncoated margin, as clearly shown in Fig. 13, wherein two surrounding guard-strips or elevations are present, thereby presenting an additional barrier against the egress of the sticky fly-catching material or the ingress of drying or hardening medium thereto.

l. The combination, with a pair of sheets or leaves of sticky y-paper, of separable spacing elevations or strips of suitable thick- IOO ness interposed in the uncoated margin in one or more distinct rows between the two leaves of a once-folded sheet or each pair of sheets of said iy-paper whose sticky-coated faces lie contiguous, substantially as herein more adhesive than the fly-catching material, 1o set forth. substantially as herein set forth.

2. The combination, with a pair of sheets In testimony of which invention I have y or leaves of sticky fly-paper having their hereunto set my hand.

5 sticky faces eontiwuous of a separable guard- 1 strip or elevationcB, interposed between said ALFRED b' TRENNER' sheets or leaves in their unooated margins Vitnesses: and stuck in place on one or both sides by JOHN E. JONES, means of a material equally adhesive as or L. M. JONES. 

